Creep deformation mechanism in a Ni base single crystal superalloy

IMR OpenIR

	Creep deformation mechanism in a Ni base single crystal superalloy
	Liu, LR ; Jin, T ; Zhao, NR ; Wang, ZH ; Sun, XF ; Guan, HR ; Hu, ZQ
通讯作者	Liu, LR(Lrliu866@sohu.com)
	2005-11-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	41 期号:11 页码:1215-1220
摘要	The creep deformation mechanisms of a Ni base single crystal superalloy at 760 degrees C /780 MPa and 982 degrees C /248 MPa we're studied by a transmission electron microscopy (TEM). The results show that under moderate temperature and high stress (760 degrees C /780 MPa), the gamma' phase is sheared through dissociation of matrix dislocation, leaving a stacking fault at low strain stage; while at high strain stage, the gamma' phase is cut by dislocation pairs. Under high temperature and low stress (982 degrees C /248 MPa), the deformation is based on the movement of dislocations in the matrix, bowing of the matrix dislocations between the gamma' precipitates and dislocation reacting to form the dislocation networks at low strain stage; while at high strain stage, the gamma' phase is cut as that of 760 degrees C /780 MPa.
关键词	Ni base single crystal superalloy creep deformation dislocation
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000233702000016
出版者	SCIENCE PRESS
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/82599
通讯作者	Liu, LR
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110023, Peoples R China
推荐引用方式 GB/T 7714	Liu, LR,Jin, T,Zhao, NR,et al. Creep deformation mechanism in a Ni base single crystal superalloy[J]. ACTA METALLURGICA SINICA,2005,41(11):1215-1220.
APA	Liu, LR.,Jin, T.,Zhao, NR.,Wang, ZH.,Sun, XF.,...&Hu, ZQ.(2005).Creep deformation mechanism in a Ni base single crystal superalloy.ACTA METALLURGICA SINICA,41(11),1215-1220.
MLA	Liu, LR,et al."Creep deformation mechanism in a Ni base single crystal superalloy".ACTA METALLURGICA SINICA 41.11(2005):1215-1220.